Datasheet > LM317S

LM317S

更新时间： 2024-01-30 07:28:00

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描述
3-Terminal Positive Adjustable Regulator

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LM317S 技术参数

生命周期：	Contact Manufacturer	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.59
Base Number Matches：	1

LM317S 数据手册

TIGER ELECTRONIC CO.,LTD

Product specification

LM317S

3-Terminal Positive Adjustable Regulator

Features

Description

◆

Output Current In Excess of 1. 0A

Output Adjustable Between 1. 2V and 37V

Internal Thermal Overload Protection

Internal Short Circuit Current Limiting

Output Transistor Safe Operating Area Compensation

TO-263 Package

This monolithic integrated circuit is an adjustable

3-terminal positive voltage regulator designed to

supply more than 1.0A of load current with

anoutput voltage adjustable over a 1.2 to 37V.

It employs internal current limiting, thermal

shut-down and safe area compensation.

◆

Absolute Maximum Ratings ( Ta = 25 ^OC)

Parameter

Symbol

Typ

Unit

Input-Output Voltage Differential

Lead Temperature

V_I-V_O

TLEAD

P_D

^oC

230

Internally

limited

Power Dissipation

Operating Junction Temperature R

ange

0~125

T_j

Storage Temperature Range

-65~150

T_STG

1. Adjust

2. Vout

TO-263-2L

Temperature Coefficient of Output

Voltage

%/^oC

3. Vin

Vo/

0.02

Electrical Characteristics

( Ta = 25 C)

(V - V = 5 V, I = 0.5 A, 0^oC

≤

+ 125^oC, I

≤

= 1.5A,P_DMAX= 15W, unless otherwise specified)

MAX

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

TA = +25^oC

0.01

0.02

0.04

0.07

3V V - V

40V

≤

Line Regulation (Note1)

% / V

Rline

3V V - V

≤

TA = +25^oC, 10mA

≤

MAX

V_O< 5V

0.4

0.5

V_O5V

≥

Load Regulation (Note1)

Adjustable Pin Current

mV % / V_O

Rload

I_ADJ

10mA

≤

MAX

V_O< 5V

V_O5V

1.5

0.8

≥

100

3V V - V

40V

≤

Adjustable Pin Current Change

Reference Voltage

Δ _ADJ

10mA

_MAXP_D

2.0

≤

MAX

3V V - V

40V

≤

10mA ^INI ^OI

1.20

1.25

1.30

V_REF

I_O(MAX)

≤

MAX

P_D

≤

MAX

V_I- V_O15V, P

V_I- V_O40V, P^DP^MAX

≤

2.0

0.3

≤

Maximum Output Current

1.0

≤

MAX

V_O= 10V, f = 120Hz

without CADJ

C_ADJ= 10 F (Note2)

Ripple Rejection

Note:

1. Load and line regulation are specified at constant junction temperature. Change in V_Ddue to heating effects must be taken

into account separately. Pulse testing with low duty is used. (P_MAX= 15W)

2. C_ADJ, when used, is connected between the adjustment pin and ground.

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